add a 2.6.24 specific patch for the switch driver, thanks to Francesco Gringoli for his 2.6.24-rc2 patch
SVN-Revision: 10337
This commit is contained in:
Gabor Juhos
parent
7b3d603037
commit
fdee1a5a5a
@ -0,0 +1,144 @@
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Index: linux-2.6.24/drivers/net/adm5120sw.c
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===================================================================
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--- linux-2.6.24.orig/drivers/net/adm5120sw.c
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+++ linux-2.6.24/drivers/net/adm5120sw.c
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@@ -93,8 +93,14 @@
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/* ------------------------------------------------------------------------ */
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struct adm5120_if_priv {
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+ struct net_device *dev;
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+
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unsigned int vlan_no;
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unsigned int port_mask;
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+
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+#ifdef CONFIG_ADM5120_SWITCH_NAPI
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+ struct napi_struct napi;
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+#endif
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};
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struct dma_desc {
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@@ -333,7 +339,6 @@ static void sw_dump_regs(void)
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SW_DBG("rlda: %08X\n", t);
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}
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-
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/* ------------------------------------------------------------------------ */
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static inline void adm5120_rx_dma_update(struct dma_desc *desc,
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@@ -495,9 +500,11 @@ static void adm5120_switch_tx(void)
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}
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#ifdef CONFIG_ADM5120_SWITCH_NAPI
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-static int adm5120_if_poll(struct net_device *dev, int *budget)
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+static int adm5120_if_poll(struct napi_struct *napi, int limit)
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{
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- int limit = min(dev->quota, *budget);
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+ struct adm5120_if_priv *priv = container_of(napi,
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+ struct adm5120_if_priv, napi);
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+ struct net_device *dev = priv->dev;
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int done;
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u32 status;
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@@ -509,13 +516,10 @@ static int adm5120_if_poll(struct net_de
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SW_DBG("%s: processing RX ring\n", dev->name);
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done = adm5120_switch_rx(limit);
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- *budget -= done;
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- dev->quota -= done;
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-
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status = sw_int_status() & SWITCH_INTS_POLL;
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if ((done < limit) && (!status)) {
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SW_DBG("disable polling mode for %s\n", dev->name);
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- netif_rx_complete(dev);
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+ netif_rx_complete(dev, napi);
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sw_int_unmask(SWITCH_INTS_POLL);
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return 0;
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}
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@@ -541,10 +545,12 @@ static irqreturn_t adm5120_switch_irq(in
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if (status & SWITCH_INTS_POLL) {
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struct net_device *dev = dev_id;
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+ struct adm5120_if_priv *priv = netdev_priv(dev);
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+
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sw_dump_intr_mask("poll ints", status);
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SW_DBG("enable polling mode for %s\n", dev->name);
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sw_int_mask(SWITCH_INTS_POLL);
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- netif_rx_schedule(dev);
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+ netif_rx_schedule(dev, &priv->napi);
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}
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#else
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sw_int_ack(status);
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@@ -779,12 +785,31 @@ static void adm5120_switch_set_vlan_port
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/* ------------------------------------------------------------------------ */
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+#ifdef CONFIG_ADM5120_SWITCH_NAPI
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+static inline void adm5120_if_napi_enable(struct net_device *dev)
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+{
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+ struct adm5120_if_priv *priv = netdev_priv(dev);
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+ napi_enable(&priv->napi);
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+}
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+
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+static inline void adm5120_if_napi_disable(struct net_device *dev)
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+{
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+ struct adm5120_if_priv *priv = netdev_priv(dev);
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+ napi_disable(&priv->napi);
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+}
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+#else
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+static inline void adm5120_if_napi_enable(struct net_device *dev) {}
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+static inline void adm5120_if_napi_disable(struct net_device *dev) {}
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+#endif /* CONFIG_ADM5120_SWITCH_NAPI */
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+
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static int adm5120_if_open(struct net_device *dev)
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{
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u32 t;
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int err;
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int i;
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+ adm5120_if_napi_enable(dev);
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+
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err = request_irq(dev->irq, adm5120_switch_irq,
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(IRQF_SHARED | IRQF_DISABLED), dev->name, dev);
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if (err) {
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@@ -809,6 +834,7 @@ static int adm5120_if_open(struct net_de
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return 0;
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err:
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+ adm5120_if_napi_disable(dev);
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return err;
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}
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@@ -818,6 +844,7 @@ static int adm5120_if_stop(struct net_de
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int i;
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netif_stop_queue(dev);
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+ adm5120_if_napi_disable(dev);
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/* disable port if not assigned to other devices */
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t = sw_read_reg(SWITCH_REG_PORT_CONF0);
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@@ -1001,6 +1028,9 @@ static struct net_device *adm5120_if_all
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if (!dev)
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return NULL;
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+ priv = netdev_priv(dev);
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+ priv->dev = dev;
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+
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dev->irq = ADM5120_IRQ_SWITCH;
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dev->open = adm5120_if_open;
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dev->hard_start_xmit = adm5120_if_hard_start_xmit;
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@@ -1010,13 +1040,11 @@ static struct net_device *adm5120_if_all
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dev->tx_timeout = adm5120_if_tx_timeout;
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dev->watchdog_timeo = TX_TIMEOUT;
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dev->set_mac_address = adm5120_if_set_mac_address;
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+
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#ifdef CONFIG_ADM5120_SWITCH_NAPI
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- dev->poll = adm5120_if_poll;
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- dev->weight = 64;
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+ netif_napi_add(dev, &priv->napi, adm5120_if_poll, 64);
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#endif
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- SET_MODULE_OWNER(dev);
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-
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return dev;
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}
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